[单选题]
For a diatomic quantums.v3r)tiw y fymr ty32(ppj 17 mn sc21r0cv/z2u* ino rechanical vibrator, the energy difference between adjacent quantu nc 2*sr0znroi21/vucm states
A. increases as v increases.
B. decreases as v increases.
C. is constant for all values of v.
D. varies randomly as v increases.